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47071472 = 247487863
BaseRepresentation
bin1011001110010…
…0000011110000
310021120110220212
42303210003300
544022241342
64400523252
71111046420
oct263440360
9107513825
1047071472
1124630548
1213920528
1399a1456
146374480
1541ec182
hex2ce40f0

47071472 has 40 divisors (see below), whose sum is σ = 104564736. Its totient is φ = 20108736.

The previous prime is 47071469. The next prime is 47071483. The reversal of 47071472 is 27417074.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54113 + ... + 54975.

Almost surely, 247071472 is an apocalyptic number.

It is an amenable number.

47071472 is an abundant number, since it is smaller than the sum of its proper divisors (57493264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47071472 is a wasteful number, since it uses less digits than its factorization.

47071472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365 (or 1359 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 47071472 is about 6860.8652515554. The cubic root of 47071472 is about 361.0654444570.

The spelling of 47071472 in words is "forty-seven million, seventy-one thousand, four hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 487 863 974 1726 1948 3409 3452 3896 6041 6818 6904 7792 12082 13636 13808 24164 27272 48328 54544 96656 420281 840562 1681124 2941967 3362248 5883934 6724496 11767868 23535736 47071472